Vaporizer for refrigerating systems



March 24, l925.`

J. R. REPLOGLE Filed Sept. 22 1921 l @513 @bio/:M0139:

VAPORIZER FOR REFRIGERATING SYSTEMS 2 Sheets-Shea?l l 31am/nto@ J. R. REPLOGLE VAPORIZER FOR REFRIGERATING SYSTEMS March 24,'"1925 L Filed Sept. 22, 1921 2 Sheets-Sheet 2 91 Vs S O @norm/woz:

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:0n 3.. BIPLOGLE, 01|| DETROIT, IICHIGAN, ASSIGNOR T0 THE '.ISBIIJ'BI' conm, Tauern, or nn'iriwrr, incisioni, a. conroiiarroiv or incluent.

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Application n led September 22, 1921. Serial lo.

To all whom it may concern:

Be it known that I, JoHN R. Rnrmcnn, citizen of the United States of America, and a resident of Detroit, coun of Wayne, and State of Mi have invented certain new and useful rovements in Vaporizers for Reirigerating is a full, clear, concise, and exact descri tion, such as will enable others skilled e art to which the invention relates to make and use the same, reference being made drawings: which form a part of this spec' cation.

My invention relates to refrigerating. systems, and particularly to the vaporizing or.

evapora elements or devices of such systems wherein a highly volatile liquid in boiling at a low temperature abstracts heat from space,k and causes a reduction of the temperature therein; my present invention being in the nature of an improverelating to certainparts of a ating unit invented by me and for whi an ap lication for Letters latent of the United gtates was filed uponv June 6,

1921, Serial No. 475ML The principal object of my invention is to provide an improved form of vaporizmg device or boiler for use in refrigerating Asystems of the class described wherein the sur-` face exposed to the action of air surrounding or ilowmg ast the vaporizer is greatly increased, andJ a more eective and ra id coolof the air secured; the increase vapor izin surface being secured without increas e over all dimensions of the element or device in question.

1Other objects fp: 'myh inyelilition more cear ap mteoowingescrition hicletlaken in connection with e dra ,comprises a disclosure of the 'referred crm of lily-invention; it being un erstood, however, that m invention includes such variations andm cationsof the ticular embodiment thereofillustra as come within the scopev of the concludingA claims.

In the drawings accompanying and Vformofthisspeciication:

1 is a view showing the princi of my improvedr va devlidle insi elevatiomtogetherwiafanw the air.

ystcms, of which the fol Y by a current of air is made ilow past the same to'thereby accomplish the cooling of Figure 3 is a f entary sectional view illustrating certain eatures of my invention upon a larger scale.

Referring to the dra the referencenumeral 5 designates a suitable rece tacle shown as a cylindrical drum within w 'ch a liquefied refrigerating medium such as sul'-v Ehurfdioxide or ammonia is received and eld, the va or ofsaid medium being compressed an d 'queiied by a suitable pump and cooling coil located within a machinery compartment 6 which comfpressing and liquefying devices maybe o the particular form disclosed 1n my application for atent hereinbefore mentions or of other :Emu so long as they serve to comprc'and lique the reri erat' medium which has assumed the orm o ya va or \in accomplishing its cooling function. e pipes 7 8 and 9 for conducting vaporized 'refrigerating medium from the receptacle 5 to the comprwonfor returning liquefied refri rating medium from the coohng and con ensing coil to the said receptacle, and for connecting said receptacle with a controlling device for the system, are all as in my prior invention hereinbefore mentioned.

l Depending from the receptacle 5 are a series of U-shaped tubes 10 arranged alongside and parallel with one another and the upper ends of which are connected with and are in open communication with the interior of the receptacle at oppositely located points spaced -apart from one another, and which places or points lof connection are preferably at difercnt heights or in different' levels. The drum 5 thus constitutes a header for the tubes 10. The vertical sides of these tubes or depending loops are connected with one another -by a series of spaced cross tubes 11 the ends of which are in open communicathe higher l'evel, as at 13. To avoid unduly 105 weakening the w'all of the drum 5 by close Y ac' o the holes therethrough to receive een of the tubes'10,the latter are arwith their higher ends alternately on opposite sides ofthe drum. This results in 110 vtion with the interiors of the Said sides.

the inclination in opposite directions ofV the cross tubes 11 of the adjacent tubes -10 and this has an advantage which will presently be referred to further.

As is fully disclosed iii my application S e rial No. 475,844, above referred to, the liquid refrigerant supply tube 8 and its associated automatic float valve in the drum 5, in conjunction with the compressor, are adapted to maintain the top level of the liquid refrigerant in the drum above the higher ends 13 of the tubes 10. rl `hus there are unbroken circuits of the liquefied refrigerant through the tubes 10, 11 and the drum 5 for free circulation by convection. The arrangement of the higher ends of the cross tubes 11 of each loop 10 in communication `with the verticalleg of the loop which itself communicates with the drum 5 at the higher level secures a better flow of vaporized refrigerating medium from the cross tubes upward through the tubular structure and into the drum.. Furthermore, this flow of vaporized refrigerant upward through the upwardly inclined cross tubes 11 and into the vertical leg of the loop connected at 13 to the drum is in the same directionas the natural circulation of the liquid refrigerant throu h the loo and serves to augment this atter circu ation thus securing more rapid interchange of heat between the refrigerant and the air or other duid surrounding or flowing past the vaporizer, and a more rapid and ei'icient cooling of the air than wouldl otherwise re- P sult.

The compressor and condenser compartment 6 as well also as the vaporizer or boiler structure are shown as enclosed Within a casing 14 through which air s caused to ow by a fan 15 and which air will become cooled by the vaporization of refrigeratin medium Within the vaporizin device as it ows past the same; the tubu ar structure described providinga vaporizing element wherein the surface exposed to the air is large as compared with the overall dimensions thereof,

meines .invention I claim' and desire to secure by Letters Patent:

1. In a vaporizer for refrigerating systems, the combination of a header adapted to receive and hold liquefied refrigerant; means for maintaining liquid refrigerant therein up to a certain level; a plurality of itl-shaped tubes depending from the header each have ing its respective ends in directcommunican tion with the liguid refrigerant in the header at points space apart from one another and at diderent levels below the surface level or the li uid refrigerant in said header; and a plurality of inclined cross tubes connecting the-side sections of each dependin tube, the higher ends of said cross tubes nected to the side section of the depending tube which opens into the header at the higher level.

2. In a vaporizer for refrigeratin systems, the combination ofA a header a apted to receive and hold Vliquefied refri erant; a pluralit of U- haped tubes depen ing from the hea er each having its respective ends in open communication with the header at oints spaced apart from one another and at different levels; and a plurality of inclined cross tubes connecting the side sec' tions of each depending tube, the higher ends of said cross tubes being connected to the side of the depending tube which opens into the header at the higher level and the ends of the depending tubes and inclined tubes being arranged in alternation so that the cross tubes of adjacent depending tubes are inclined in opposite directions.

1n testimony whereof I ax my signature.

JOHN It. REPLOGLE.

eing con- 

